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30476933 = 203914947
BaseRepresentation
bin111010001000…
…0101010000101
32010100101111022
41310100222011
530300230213
63005120525
7520023014
oct164205205
963311438
1030476933
1116226853
12a259145
1364110b6
144094a7b
152a20308
hex1d10a85

30476933 has 4 divisors (see below), whose sum is σ = 30493920. Its totient is φ = 30459948.

The previous prime is 30476921. The next prime is 30476951. The reversal of 30476933 is 33967403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33967403 = 52336491.

It is a cyclic number.

It is not a de Polignac number, because 30476933 - 212 = 30472837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30476893 and 30476902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30476833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5435 + ... + 9512.

It is an arithmetic number, because the mean of its divisors is an integer number (7623480).

Almost surely, 230476933 is an apocalyptic number.

It is an amenable number.

30476933 is a deficient number, since it is larger than the sum of its proper divisors (16987).

30476933 is a wasteful number, since it uses less digits than its factorization.

30476933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16986.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 30476933 is about 5520.5917255309. The cubic root of 30476933 is about 312.3612030024.

The spelling of 30476933 in words is "thirty million, four hundred seventy-six thousand, nine hundred thirty-three".

Divisors: 1 2039 14947 30476933